CN201124168Y - Differential double-layer air dry separator - Google Patents

Abstract

The utility model relates to a dry separation machine, in particular to a differential double-layer wind force dry separation machine. Including frame, transmission frame, sorting bed, vibrator, air chamber, air inlet tube, material receiving trough, dust cover, hanging vibration-reducing adjustment device, and the hanging vibration-reducing adjustment device on the frame from top to bottom Two transmission frames are suspended below, and each transmission frame is equipped with a sorting bed; the vibration exciter is composed of two synchronous belt differential vibration exciters connected by soft connectors, and is installed at the longitudinal bottom of the transmission frame. A buffer spring is additionally installed on the tensioning wheel. The utility model overcomes the disadvantages of low processing capacity, high energy consumption and unsatisfactory sorting effect of the current dry separator by increasing the parallel connection of the bed surface of the sorting bed and the double exciter, and also solves the existing problems of the current dry separator. Due to problems such as large land area and inconvenient equipment configuration, the energy consumption per unit area of the sorting bed is reduced by 40%, and the production capacity is increased many times. It is suitable for coal sorting in large-scale mines and wharf coal stations.

Description

Differential double-layer air dry separator

Technical field:

The utility model relates to a dry sorting machine suitable for sorting gangue in coal, pyrite in gangue, and a mixture of two or more solid materials with large differences in specific gravity, in particular to a differential double-layer wind-force dry separator. Choose machine.

Background technique:

The known dry sorting machine generally hangs one set on a frame or hangs two sets of sorting beds side by side on the left and right sides, and each sorting bed is equipped with a differential vibration exciter. One rack with one bed has the problem of low processing capacity, and a rack with two beds side by side has problems such as large rack space and inconvenient equipment configuration. In addition, some have small strokes and high stroke times, which are not suitable for the separation of high-moisture and large-grained materials; The noise is also large, and the processing power is not enough.

Invention content:

The utility model aims to solve the above problems, and provides a differential double-layer wind power dry separator with large processing capacity, small floor space, convenient equipment configuration and good separation effect, which can be used in larger mines.

The technical solution adopted by the utility model to solve the technical problem is: a differential double-layer wind force dry separator, including a frame, a transmission frame, a sorting bed, a vibration exciter, an air chamber, an air inlet cylinder, a material receiving trough, Dust collection cover, suspension vibration reduction adjustment device, the suspension vibration reduction adjustment device is composed of rubber spring, steel wire rope, adjustment wheel, worm wheel, the bed surface of the sorting bed is rectangular, and there is a sawtooth rubber sieve plate with holes on it. The sieve plate is pressed with a certain angle, a certain height, and evenly spaced partitions. A tank is formed between the partitions. An adjustable discharge baffle and an adjustable feed port are connected on the top of the sorting bed. There are multiple air chambers, the air chamber and the air inlet tube are connected by hoses, the air inlet tube and the air chamber are equipped with adjusting air volume devices, the air supply volume is adjustable continuous or pulsating air, the machine is hung on the frame to reduce The vibration adjustment device hangs two transmission frames from top to bottom, and each transmission frame is equipped with a sorting bed; the vibration exciter is composed of two synchronous belt differential vibration exciters connected by a soft coupling At the longitudinal bottom of the transmission frame, a buffer spring is additionally installed on the tensioning wheel.

Compared with the prior art, the beneficial effect of the utility model is: through the enlargement of the sorting bed surface and the parallel connection of the double exciters, it overcomes the disadvantages of low processing capacity, large energy consumption and unsatisfactory sorting effect of the current dry separator At the same time, it also solves the problems of large floor area and inconvenient equipment configuration in the current dry separator. The energy consumption per unit area of the sorting bed is reduced by 40%, the production capacity is increased many times, and the adaptability to particle size and moisture is relatively large. wide, the equipment is stable in use, not easy to wear, and requires less maintenance. It can not only achieve a good separation effect, but also meet the high-efficiency dust removal effect required by environmental protection. It is suitable for coal separation in large-scale mines and wharf coal stations.

Description of drawings:

Fig. 1 is the front view of the structure diagram of the utility model.

Fig. 2 is a schematic side view of the structure of the utility model.

Fig. 3 is a schematic plan view of the structure of the utility model.

In the figure: vibration exciter 1, frame 2, transmission frame 3, sorting bed 4, feeding port 5, suspension damping adjustment device 6, worm wheel 7, dust cover 8, discharge baffle 9, angle adjuster 10. Gangue receiving tank 11, hose 12, artificial hole 13, slag discharge gate 14, buffer spring 15, adjusting wheel 16, steel wire rope 17, air chamber 18, rubber spring 19, air volume adjustment device 20, air inlet cylinder 21, Transmission device 22, clean coal hopper 23, motor 24, bed frame 25, sieve plate 26, dividing plate 27, soft coupling 28, medium coal hopper 29.

Detailed ways:

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

As shown in the figure, a differential double-layer wind power dry separator, the frame 2 is a frame structure, on which two transmission frames 3 are suspended from top to bottom through a suspension vibration reduction adjustment device 6, each transmission A sorting bed 4 is installed on the frame 3, and the bed surface of the sorting bed 4 is rectangular, and a sawtooth-shaped rubber sieve plate 26 with holes is laid on it. Evenly spaced partitions 27 form grooves between the partitions 27. The sieve plate 26 has good wear resistance and high friction coefficient. Its sawtooth grooves are conducive to the discharge of materials, and there will be no return movement of heavy objects. The bed frame 25 of the sorting bed 4 has a recliner 10 that can adjust the lateral angle of the bed surface, and an adjustable discharge baffle 9 and an adjustable feed port 5 are installed above the bed surface. The height of the mouth 5 and the discharge baffle 9 makes the materials on the bed surface layered according to the specific gravity, and are discharged in sequence from light to heavy according to the specific gravity. Below the sorting bed 4 are provided with a plurality of air chambers 18 connected thereto, the air chambers 18 are connected with the air inlet cylinder 21 through the flexible pipe 12, and the air inlet cylinder 21 and the air chamber 18 are all equipped with an air volume regulating device 20, and the air inlet The air supply method can be continuous or pulsating, and the air volume can be flexibly adjusted according to the material properties to achieve the best effect. The air inlet tube 21 is provided with a slag discharge gate 14 and an artificial hole 13, and the material smaller than the sieve hole that leaks to the bed surface of the sorting bed 4 enters the air chamber 18 to the air inlet tube 21, and can be cleaned up in time. The suspension damping adjustment device 6 in the present embodiment is two sets, is respectively made of steel wire rope 17, adjustment wheel 16, rubber spring 19, worm wheel 7, and worm wheel 7 is used for adjusting the longitudinal angle of sorting bed 4 bed surfaces, and rubber spring 19 slow vibration, prolong the life of the equipment.

The exciter 1 is composed of two synchronous belt differential exciters connected by a soft coupling 28, installed on the longitudinal bottom of the transmission frame 3, and a buffer spring 15 is installed on the tensioning wheel. A frequency regulator with a motor 24 is arranged in the vibrator 1, and the vibration force direction of the vibrator 1 forms an angle of 21-29 degrees with the bed surface of the sorting bed 4 .

The differential synchronous belt exciter in this embodiment is a transmission device 22 composed of a polyurethane (or adhesive tape) double-sided synchronous toothed belt and gears with a gear ratio of 2 installed on four shafts. The variable frequency motor 24 drives four eccentric blocks of different weights installed on four shafts, so that the forward and backward speeds are different to generate differential motion, which speeds up the material handling speed, increases the processing capacity, low noise, and stable transmission. The buffer spring 15 installed on the tensioning wheel can alleviate the synchronous belt impact force.

Working principle: The material enters the sorting bed 4 from the feeding port 5; under the action of the blower, the wind enters the air inlet tube 21 and the under-screen air chamber 18, and passes through the sieve plate 26 to the material layer; the material on the bed surface of the sorting bed 4 is excited The inertial force is generated under the action of vibrator 1, so under the action of inertial force and wind force, the materials are gradually stratified, the materials with light specific gravity move to the uppermost layer of the bed, and the materials with heavy specific gravity settle to the lower layer of the bed. Under the action of the lateral inclination of the bed surface, the materials are affected by gravity, the materials with lighter specific gravity enter the second compartment, and the materials with larger specific gravity move towards the gangue end, and the materials in the second compartment are under the action of inertia and wind force, Directly enter the clean coal section and discharge into the clean coal receiving chute 23, and the materials with heavier specific gravity are repeatedly layered according to different levels until the medium coal is separated from the gangue with the largest specific gravity, and the medium coal is discharged into the medium coal receiving material Groove 29, the gangue of specific gravity is discharged into the gangue receiving chute 11 from the end of the bed under the differential action of the exciter 1. The dust in the sorting process is discharged into the atmosphere through the dust cover 8 with an induced draft fan.

The above process mainly depends on the stroke of the differential vibrator 1, the number of strokes, the amount of feeding, the height of the discharge baffle 9, the separation section of the material receiving trough, the size of the air intake, whether the air intake mode is continuous or pulsating, bed Face vertical and horizontal angle adjustment devices, etc. to achieve.

Claims (1)

1. A differential double-layer wind-force dry separator, including a frame, a transmission frame, a sorting bed, a vibrator, an air chamber, an air inlet cylinder, a material receiving chute, a dust cover, and a hanging vibration-reducing adjustment device, The suspension damping adjustment device is composed of rubber springs, steel wire ropes, adjustment wheels, and worm gears. The bed surface of the sorting bed is rectangular, and a sawtooth rubber sieve plate with holes is laid on it. The sieve plate is pressed with a certain angle, a certain height, Evenly spaced partitions form tanks between the partitions, adjustable discharge baffles and adjustable feed ports are connected to the top of the sorting bed, and multiple air chambers are arranged below the sorting bed. The cylinder is connected by a hose, and the air inlet cylinder and the air chamber are equipped with an air volume adjustment device, and the air supply volume is adjustable continuous or pulsating air, and the characteristics are as follows: a. Two transmission frames are respectively suspended from top to bottom through the suspension vibration-reduction adjustment device on the frame, and a sorting bed is installed on each transmission frame; b. The exciter is composed of two synchronous belt differential exciters connected by soft connectors, installed at the longitudinal bottom of the transmission frame, and a buffer spring is installed on the tensioning wheel.

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